Hey Tony, that "someone" is me. I replied to your thread on the Mastodon forum yesterday a couple times. I was on the front row on the rail, and I know for a fact that Brent was playing guitar during Blood and Thunder. He was on stage left with his wife/girlfriend/groupie. I just hope dude either gets his shit together or the band figure out what to do with him, like find a touring vocalist and give him full time guitar duties or something.